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Showing 1 to 13 of 13 for “"Provenance analysis"”.
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Facies and provenance analysis of the Midcontinent Rift System (MRS) in Kansas
… stages of rift development. Detailed facies and provenance analyses were carried out in discontinuous cores retrieved from the lower and upper successions (5395-11300 ft deep). Sixteen lithofacies were identified, grouped into six different facies associations (fluvial, eolian, mudflat/lake …
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INNOVATIVE AND CONVENTIONAL APPROACHES TO DETRITAL ZIRCON PROVENANCE ANALYSIS: LOOKING TO THE PAST, PRESENT, AND FUTURE
<p>Detrital provenance analysis is an important tool in our understanding paleo-fluvial drainages, erosion of landscapes, paleogeographic reconstructions, and regional geologic and tectonic histories. Here, we examine the utility of multiple provenance analysis techniques through their application …
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Isotopic characterization of bedrock, sediments, and minerals as provenance tools: Examples from an inselberg in the Mojave Desert of SE California
… and are often grouped under the broad scope of provenance analysis. Much of what we know of how sediments evolve and shape our landscape stems from provenance analysis, which tries to trace the pathway of source to sink. However, complexities arise when the final composition or signature of the …
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A geochemical look at obsidian procurement and exchange in the Medio period world : a case study 76 Draw (LA 156980)
… AT AUTHOR'S REQUEST.] Geochemical provenance analysis of obsidian is a productive avenue for studying social interaction and lithic raw material procurement strategies in the U.S. Southwest. Here the results of the analysis of 180 obsidian artifacts recovered from 76 Draw, a Medio …
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Regional Deformation and Dynamic Processes of the Southern Puna Plateau, Central Andes
… across the plateau region during ~38-28 Ma. Provenance analysis suggests that this basin was sourced from active orogenic front to the west and re-activated relict landscape to the east. During the late Oligocene (~25 Ma) to mid-late Miocene (~8 Ma), the southern Puna Plateau started to be …
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Geohistory of the Central Anatolian Plateau southern margin (southern Turkey)
… almost 1500 km3 of conglomerates and marls. Our provenance analysis of the conglomerates reveals that most of the sediment is derived from and north of the SE margin of the Central Anatolian Plateau. A comparison of these results with the composition of recent conglomerates and the present …
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Tectonic-erosion interactions : insights from the paleo-drainage of the Brahmaputra River
… apatite fission-track and luminescence dating. Provenance analysis using zircon and apatite U-Pb dating allows the reconstruction of the Miocene-Quaternary paleo-drainage of the Brahmaputra River and the documentation of the tectonic evolution of two poorly understood Himalayan features: the …
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Paleocene Turbidite Deposition in the Central American Seaway (NW Costa Rica): Geochemical Analysis and Provenance of Detrital Spinel and Clinopyroxene
… basin. This study focuses on the origin and provenance of the Paleocene deep water Rivas and Descartes turbidites that crop out on the northern part of the Santa Elena peninsula in northwestern Costa Rica. Understanding the sedimentary fill of the Sandino Basin that contributed to the closing …
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Origin and Tectonic Evolution of Gondwana Sequence Units Accreted to the Banda Arc: A Structural Transect through Central East Timor
Petrographic and age analysis of sandstones, detailed structural analysis and gravity modeling were conducted to investigate the origin of the Gondwana Sequence in the Timor Region, and to better constrain the tectonic evolution of the active Banda Arc. Our field studies and U/Pb zircon age …
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The Global Detrital Zircon Database: Quantifying the Timing and Rate of Crustal Growth
… This database provides a reference block for provenance analysis by future detrital zircon geochronological studies. This project entailed three subprojects: 1. crustal growth/crustal recycling patterns, 2. a provenance study of the Triassic Dry Fork Formation of the Danville-Dan River Rift …
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Stratigraphic signatures of convergent orogenesis from the plate interior : studies from Tibet and the southern Rocky Mountains
… through a sedimentological and multi-proxy provenance study. Provenance and stratigraphic analysis reveals syn-collisional exhumation of the Eastern Kunlun Shan and Qilian Shan, marking the early establishment of the borders of the Tibetan plateau. Chapter 3 investigates the record of …
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Bindings of Baskerville: Study of the bindings found on John Baskerville’s editions in the British Isles and abroad (18th-19th century)
… through tool design and innovative marbling. The provenance evidence found on this group of bindings revealed that he was likely offering this binding service to local customers. The present research also explores the rest of the bindings found, which constitute most of the books surveyed, and …
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Oroclines of the Iberian Variscan belt: Tectonic and paleogeographic implications
… to an originally linear belt 2300 km in length. Provenance analysis of detrital zircons sampled from the Armorican Quartzite along a 1500-km-long segment of the palinplastically restored Iberian passive margin indicate that it originated in a paleogeographic position stretching east-west along …